Mixing-machine.



No. 707,26l, Patented Aug. l9, I902.

E. RUTTKAMP.

MIXING MACHINE.

(Appliation filed Feb. 24, 1902.)

(No Model.)

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UN TED STATES PATENT OFFICE.

ERNEST RUTTKAMP, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR OF ONE HALF TO CHARLES RUTTKAMP, OF ALLEGHENY, PENNSYLVANIA.

MIXING-MACHINE.

SPECIFICATION formingpart of Letters PatentNo. 707,261, dated August 19, 1902.

v Application filed February 24, 1902. Serial No. 95,201. (No model.)

To aZZ whom it may concern:

Be it known that I, ERNEST RUTTKAMP, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Improvements in Mixing-Machines, of which the following is a specification.

In the accompanying drawings, which make part of this specification, Figure Iis a perspec-.

tive of my invention with portions in section and broken away to show concealed parts. Fig. II is a vertical section of the mechanism 'a dough-mixing machine whereby the mechanism bearing the mixing-arms may be automatically reversed as it reaches the ends of the mixing-trough.

It is also an object of my invention to so mount the traveling mixer that it may be raised out of the trough to give free access thereto.

1 represents a semicylindrical trough, into which the dough to be mixed is placed- The trough is supported on legs 2 or by any approved means. At the upper part of the rear of the trough I secure two rearwardly-extending brackets or arms 3, having therein bearings 4 for the main shaft 5 and guide-openings 6 for the shifting-bar 7. The shaft 5 has at its right-hand end the usual fixed and loose pulleys 8 and 9 and a balance-wheel l0. Mounted below shaft 5 is a second shaft 11, provided with a screw-thread for the whole of its length opposite the trough 1. Its left,- hand end is provided with two loose pulleys l2 and 14 and an intermediate fixed pulley 13. As shown in Fig. I, twisted belt 14 is on loose pulley 12 and straight belt 15 is on fixed pulley 13. A bracket 16 is fixed to one arm 3 and extends horizontally toward the right and then forwardly. The forward portion thereof projects downwardly and forms a bearing for the belt-shifting bar 17, provided with eyes or loops to receive the belts 1 1 and 15. A lever 18 is pivotally attached to the bars 7 and 17 and to the bracket 16. An overthrowweight 19 is adj ustably secured to the lever 18 by the set-screw 20. Two stops 21 and 22 are slidable along the bar 7 and are held in 5 5 any desired posit-ion. by means of set-screws. These stops extend downwardly and forwardly into the line of travel of the carriage,

to be hereinafter described.

' Theshaft 5 is provided with a long groove '23, in which travels a spline 24, fixed in the bevel gear-wheel. 25.

I By this construction thewheel 25 must rotate with the shaft 5, but can slide along the same.

Supported in bearings 26 26 is a shaft 27, which has a bevel-gear 28'n1eshingwith bevelgear25. This shaft, together with the bevelgears, is inclosed in a housing 29, which lies transversely over the trough 1. The bearings 26 are supported on the floor of the hous- 7o ing. 7 The forward end of the housing has an arm'30, which reaches out over the edge of the troughrand is' turned downwardly and provided with guide-wheels 31, which travel on the track 32 on the trough. The shaft 27 has a worm 33 meshing with Worm-wheel 33. On the same shaft with the worm-wheel 33 is pinion 34, which meshes with pinion 35 on shaft 36, having secured at one end four dough-mixing arms or blades 37. v The hous- 8o ing 29 has an extension which incloses the worm-wheel 33 and pinions 34= and 35.

To the sides of the housing 29 are secured the hangers or plates 38, between whose lower ends are secured the sleeves 39 and the nut 40. The screw-shaft 11 passes through these sleeves and nut, the latter being fixed between the sleeves, so as to prevent its roshaft 5 is started, power should be applied to I00- thebelts 14: and 15, causing the mixer to travel'along the screw-shaft 11 at the same time that mixing-arms mix the dough. When the carriage or housing 29 reaches one of the stops, as 21, the further movement of the carriage shoves the bar 7 to the left. When the overbalancing-weight 19 passes the vertical line of the pivot of the lever 18, it quickly throws the belt-shifting bar 17 over to the right, causing the crossed belt 14 to run on the fixed pulley 13 and the straight belt to run on the loose pulley 14, thus causing the rotation of the screw-shaft to bereversed. The carriage then travels to the right till it engages the stop 22 and causes the shiftingbar 17 to shift the belts back to the position shown in Fig. I, thereby reversing the travel of the carriage. This operation is continued till the dough is sufiiciently mixed, whereupon the carriage is raised on the shaft 5 and the dough removed.

Having described my invention, I claim 1. In a mixing-machine, a trough and a rotary mixing device having relative longitudinal movement, and means for reversing said movement, said device being capable of removal by oscillation from over said trough.

2. In a mixing-machine, a trough and a 1'0- tary mixing device having relative longitudinal' movement, and means for reversing said movement, said device being removable from over said trough by oscillation on an axis substantially parallel to the line of said longitudinal movement.

3. In a mixing-machine, a trough and rotary mixing-blades having, relative longitudinal movement, a shaft for producing the longitudinal movement, a shaft external to the trough for rotating the blades, and'means supporting the blades and slidable on the latter shaft.

4. In a mixing-machine, a trough, a carriage provided with rotary mixing-blades and having longitudinal and vertical movements, and means for reversing the longitudinal movement.

5. In a mixing-machine, a trough, a carriage provided With rotary mixing-blades and having longitudinal and vertical movements,

and automatic means for reversing the longitudinal movement.

6. In a mixing-machine, a trough and rotary mixing-blades having relative longitudinal movement, said blades being capable of removal from over the trough and any selected point therein rotating transversely of the line of said longitudinal movement.

7. In a mixing-machine, a trough, a carriage provided with mixing-blades, a drivingshaft, driving connections between said shaft and blades permitting the travel of the carriage on said shaft, a rotatable screw-shaft, a nut in said carriage to receive the screwshaft, and means controlled by the carriage for reversing the rotation of the screw-shaft.

8. In a mixing-machine, a trough, a carriage provided with mixing-blades, a drivingshaft, driving connections between the shaft and the blades, permitting the travel of the carriage on said shaft, a second driving-shaft, connections between the latter and the carriage for causing travel of the carriage, and means for automatically reversing the rotation of the second driving-shaft.

9. In a mixing-machine, a trough, a carriage provided with mixing-blades and having longitudinal travel over said trough, a driving-shaft, a bevel-gear splined on the shaft, a second shaft mounted on the carriage and having a bevel-gear meshing with the splined gear, a worm on the second shaft, and gearing between the worm and the blades for driving the latter.

10. In a mixing-machine, a trough, a carriage provided with mixing-blades, means for driving the carriage, a sliding bar, stops on the bar, connections from said bar for reversing the movement of the carriage, and an overthrow-lever associated with the bar.

Signed at Pittsburg this 17th day of February, 1902.

ERNEST RUTTKAMP.

Witnesses:

GEO. H. HARVEY, D. C. HAWES. 

